Blar i Scientific publications på forfatter "Wacker, Sebastian"
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Association of landscape and environmental variables with the recruitment of the freshwater pearl mussel (Margaritifera margaritifera) in Norway
Gosselin, Marie-Pierre; Wacker, Sebastian; Magerøy, Jon Hamner; Foldvik, Anders; Larsen, Bjørn Mejdell (Peer reviewed; Journal article, 2023)Using data from 309 localities with freshwater pearl mussel, Margaritifera margaritifera, in Norway, we analyzed the effect of several landscape and environmental variables on this species’ recruitment. Median summer air ... -
Considering sampling bias in close-kin mark–recapture abundance estimates of Atlantic salmon
Wacker, Sebastian; Skaug, Hans Julius; Forseth, Torbjørn; Solem, Øyvind; Ulvan, Eva Marita; Fiske, Peder; Karlsson, Sten (Peer reviewed; Journal article, 2021)Genetic methods for the estimation of population size can be powerful alternatives to conventional methods. Close-kin mark–recapture (CKMR) is based on the principles of conventional mark–recapture, but instead of being ... -
Downstream transport and seasonal variation in freshwater pearl mussel (Margaritifera margaritifera) eDNA concentration
Wacker, Sebastian; Fossøy, Frode; Larsen, Bjørn Mejdell; Brandsegg, Hege; Sivertsgård, Rolf; Karlsson, Sten (Peer reviewed; Journal article, 2019)Environmental DNA (eDNA) can be used to detect the presence and abundance of aquatic organisms from water samples. Before implementing this methodology as a tool for monitoring, more knowledge is needed on variation in ... -
High levels of multiple paternity in a spermcast mating
Wacker, Sebastian; Larsen, Bjørn Mejdell; Jakobsen, Per; Karlsson, Sten (Journal article, 2018)Multiple paternity is an important characteristic of the genetic mating system and common across a wide range of taxa. Multiple paternity can increase within-population genotypic diversity, allowing selection to act on ... -
Host specificity drives genetic structure in a freshwater mussel
Wacker, Sebastian; Larsen, Bjørn Mejdell; Karlsson, Sten; Hindar, Kjetil (Journal article, 2019)Parasites often depend on their hosts for long distance transport, and genetic population structure can be strongly affected by host specificity and dispersal. Freshwater pearl mussel (Margaritifera margaritifera) populations ... -
Multiple paternity promotes genetic diversity in captive breeding of a freshwater mussel
Wacker, Sebastian; Larsen, Bjørn Mejdell; Jakobsen, Per Johan; Karlsson, Sten (Journal article; Peer reviewed, 2019)Captive breeding can be an important supplement to habitat restoration in the Conservation of threatened species. Careful choice of breeding regimes and genetic monitoring are essential to maintain genetic integrity and ... -
Selection against individuals from genetic introgression of escaped farmed salmon in a natural population of Atlantic salmon
Wacker, Sebastian; Aronsen, Tonje; Karlsson, Sten; Ugedal, Ola; Diserud, Ola Håvard; Ulvan, Eva Marita; Hindar, Kjetil; Næsje, Tor (Peer reviewed; Journal article, 2021)The viability of wild Atlantic salmon populations is threatened by genetic introgression from escaped farmed salmon. Farmed Atlantic salmon are genetically improved for important commercial traits and a life in captivity ...